import {Component} from '@angular/core';
import {Observable} from 'rxjs/Observable';
import 'rxjs/Rx';//重要,所有filter,map,from都在里面
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    constructor() {

    }

    onInit() {
    }
}
